Planetary napping-machine drum.



J. A. PRARAY & H. S. GREENE.

PLANETARY NAPPING MACHINE DRUM.

APPLICATION FILED 11017.15, 1910. 1,007,237.

Patented 0013.31, 1911.

COLUMBIA PLANOGRAPH cu.,wA:mNuTON, u. c.

UNITED STATES PATENT, OFFICE.

JOSEPH A. IPRARAY AND HARRYS. GREENE, 0F WOONSOCKET, RHODE ISLAND.

PLANETARY NAPPING-MACHINE DRUM.

Specification of Letters Patent.

Patented Oct. 31, 1911.

Application filed November 15, 1910. Serial No. 592,507.

heads of a revoluble napping machine drum in such manner that the heads are not sub- 'jected to frictional wear incidental to the rotation of the napping rolls about their axes, and the said napping rolls and their appurtenances can be expeditiously and easily applied to and removed from the heads.

Another object of the invention is to provide for adequate lubrication and in that way lessen frictional wear of the napping rolls and the parts with respect to which the same rotate.

Another object is to provide for the application of the band employed in the rotation of the napping rolls, to the said rolls in the same vertical plane as the bearing of the rolls on the spindles about which they rotate, this in order to avoid the imposition of strain on either the rolls or supporting spindles.

The invention will be best understood by reference to the following description when taken in connect-ion with the accompanying illustration of certain specific embodiments thereof, while its scopewill be more particularly pointed out in the appended claims.

In the drawings constituting part hereof: Figure l is a view, partly in diametrical section and partly in elevation, showing one form of the invention as embodied in the revoluble drum of a planetary cloth-napping machine. Fig. 2 is an end elevation of said form. Fig. 3 is a vertical section taken on the line 33 of Fig. 1, looking in the direction indicated by arrow. Fig. 4: is a detail vertical section illustrating a modification hereinafter specifically referred to. Fig. 5 is a sectional View of a modification in which the napping roll turns within instead of about the spindle.

Referring by letter to said drawings, and more particularly to Figs. 1-3 thereof: A is one head of the revoluble drum of a planetary cloth-napping machine. B is a spindle, and C is a bracketwhich is preferably fixed in detachable manner to the head A, as by screws a, and which carries the spindle B in such manner that the latter is held against rotation. At 1) the spindle B is reduced, and.

the inner end 0 of said spindle is threaded to receive a nut 03. Loosely mounted on the reduced portion 6 of spindle B is a wheel D which is preferably of spider form and provided with lubricant ducts" c, Fig. 3, and suitably fixed to the perimeter of the said wheel D and surrounding the wheel and the adjacent portion of the spindle B is a casing E, preferably of metal and of circular formin cross-section.

The wheel D may be and preferably is fixed in the casing E at the time of manufacture thereof, and obviously, if deemed expedient, the wheel D and casing E may be integral. At its inner end the casing E is provided with a reduced portion f which receives and is suitably fixed to the end of the napping roll, indicated by F. The casing E is provided in its outer end wall with an aperture 9 slightly larger than the spindle B, and suitably mounted on the spindle B is a washer Gbetween which and the outer end wall of the casing E is interposed a packing annulus H, of felt or other suitable material, which has for its ofiice to prevent grease from escaping from the casing E through the said aperture 9. At this point it may be stated that it is contemplated to charge the casing E with grease or other suitable lubricant, which grease may be introduced through the aperture 9 or in any other approved manner. When the casing E is so charged, the lubricant will find its way through the ducts e to the reduced portion I) of the spindle B, and will reduce to a minimum the friction incident to the turning of the wheel D on the spindle.

al/Vhile but one end of the napping roll F is illustrated, it will be understood that both ends of the said roll will be mounted and supported in the same manner.

At I is illustrated the band for rotating the napping roll about its axis during rotation of the napping drum about its center or axis, and in this connection it will be appreciated that the said band I engages the casing E in the same vertical plane as the bearing of said casing or the wheel D therein on the spindle B, this being advantageous since when the roll F is so turned about its axis by the band I through the medium of the casing E, the imposition of undue strain on either the roll F or the spindle B is avoided.

It will be gathered from the foregoing that rotation of the roll F about its axis is entirely unattended by frictional wear of the napping drum heads, and it will also be gathered that when desired the brackets G and the roll carried thereby can be expeditiously and easily removed from the drum heads, whereupon the casings E can be separated from the roll F, and the nuts (Zcan be removed to permit of disconnection of the casings E and wheels D from their respective spindles B.

In the modified embodiment shown in Fig. 4, an annular device D* is keyed or otherwise fixed on the reduced portion of the spindle B and anti-friction devices, such as balls I, are suitably interposed between the said annular device D and the casing E to ease rotation of the latter on the former. With these exceptions the construction shown in Fig. 4 is similar to that disclosed in Figs. 1 to 3.

In the modified construction of Fig. 5, the spindle B is secured to the head A in the same manner as the before described spindle B. It will be noticed, however, that the spindle B is provided with a casing portion E which surrounds the end portion of the napping roll F andsupports and permits of rotation of said napping roll. Anti-friction devices such as balls are preferably, though not necessarily, interposed between the casing E and roll F to ease turning of the latter in the former.

Having described our invention, what we claim and desire to secure by Letters-Patent, is:

1. A planetary napping-machine drum, comprising a revoluble head, a spindle fixed to and extending laterally inward therefrom, a napping roll supported by and ar ranged and adapted to turn concentrically to the spindle, and a band engaging the roll and adapted to turn the same about its axis incident to revolution of the drum head.

'2. A planetary napping-machine drum, comprising a revoluble head, a spindle fixed to and extending laterally inward therefrom,

a napping roll, a casing, of greater diameter than the roll, fixed with respect to the roll, at one end thereof, and surrounding and supported by and adapted to turn about the spindle, and a band engaging the casing in the same vertical plane that the casing bears on the spindle and adapted to turn the roll about its axis incident to the revolution of the drum head.

3. A planetary napping-machine drum, comprising a revoluble head, a spindle fixed to and extending laterally inward therefrom, a roll, a wheel mounted on the spindle and having lubricant ducts extending to its bearing on the spindle, a casing fixed to the roll and surrounding and fixed to said wheel and also surrounding a portion of the spindle, said casing being adapted to contain lubricant, and means for preventing escape of lubricant from the outer end of the casing.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

JOSEPH A. PRARAY. HARRY S. GREENE.

Witnesses:

FRANCES L. COYLE, PETER Co'rz.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

